Project design

Are there programs that allow you to fully build an electronic device and test is virtually? That will tell you the characteristics of the circuit? And also to suggest a layout on a pcb? And what about PCB etching layouts. I do believe that this pertains to the scope of this forum. If not, I apologize. I would like to increase my knowledge of the electronics field. Any suggestions?

I use Circuitmaker 2000 which does all of that but there are newer ones and I believe some cheaper ones as well. That's the only one I know of without doing some searching.

OK... thanks. I cant find a download link for it.

use qucs is free and opensource